>>Personally I'm comfortable with all combinations - partly through having spent a lot of time in the UK with a LHD and a lot of time in the US driving a RHD.....
>
>You mean the other way around ?

I read that as "I drove wrong-side-wheel on both sides of the pond".

>Never drove in a RHD. Used to a LHD (in RHT) , I felt strange being a car passenger in the UK. You are sitting in your 'normal' seat - but there is no wheel in front of you
>
>Of course, once you get used to both systems, it changes. Luckily the position of the clutch, brake and accelerator does not change

I pride myself in being rather ambidextrous for most of the stuff - I can write and draw with my left (the handwriting isn't much worse than my right hand one, but that doesn't mean it's good :), using pen or chalk; I can switch knife and fork (actually, the rule is "fork is on the side where the salad bowl is"). I can do lots of stuff in mirrored positions which many would find confusing... but I simply can't imagine myself driving on the left. Maybe, as Viv says, you get used to it. My concern is how to survive the accommodation period.